Resource Type

19,545 Matching Results

Results open in a new window/tab.

Rotary Tooth-Brush (open access)

Rotary Tooth-Brush

Patent for a crank powered rotary toothbrush. Designed with the purpose of easily cleaning teeth with a simple automatic mechanism, with added projection via a shield around the brush for protecting gums and cheeks from being scraped by the brush.
Date: October 8, 1918
Creator: Abel, Charles
System: The Portal to Texas History
Rotary Boring-Drill. (open access)

Rotary Boring-Drill.

Patent for "new and useful Improvements in Rotary Boring-Drills...of the collapsible type." (lines 5-12) including instructions and illustrations.
Date: December 30, 1919
Creator: Humason, Granville A.
System: The Portal to Texas History
Rotary Moving Picture Machine. (open access)

Rotary Moving Picture Machine.

Patent for motion picture machine with interchangeable heads, allowing for change of one reel while the other continues to play undisturbed from same machine.
Date: November 16, 1920
Creator: Hansard, Robert L.
System: The Portal to Texas History
Sampling Device (open access)

Sampling Device

Patent for a machine that will remove samples from a well during drilling operations.
Date: October 21, 1919
Creator: Dodds, Redus D.
System: The Portal to Texas History
Rotary Boring-Drill (open access)

Rotary Boring-Drill

Patent for improved rotary boring-drill with more efficiently mounted rollers.
Date: January 13, 1920
Creator: Hughes, Howard R.
System: The Portal to Texas History
Sample Taking Device. (open access)

Sample Taking Device.

Patent for a device that takes samples of the strata or formation through which a well is being drilled without mixing the soil with water within the reservoir.
Date: September 19, 1919
Creator: Rembert, William E.
System: The Portal to Texas History
Rotary Boring-Drill. (open access)

Rotary Boring-Drill.

Patent for an improved rotary boring-drill of which the rotary disk drill is constructed in a manner to prevent clogging from soft material balling up. The channel for flushing water is also arranged to keep cutters clear. Including illustrations.
Date: February 5, 1918
Creator: Hughes, Howard R.
System: The Portal to Texas History
Rotary Boring-Drill. (open access)

Rotary Boring-Drill.

Patent for a rotary boring drill that will "provide a cutting surface for the cutter" (lines 20-21) for drilling wells, particularly "roller cutters of the cone type used in drilling rock of other hard formation." (lines 13-15)
Date: December 23, 1919
Creator: Hughes, Howard R.
System: The Portal to Texas History
Traction Device. (open access)

Traction Device.

Patent for a traction device to be attached to the wheels of a motor vehicle to provide greater traction than the treads of the wheels. The traction device is meant to attach to and detach from the wheels as needed and to be adjustable to the dimensions of the wheels and their treads.
Date: July 5, 1921
Creator: Houston, Hugh Edward
System: The Portal to Texas History
Rotary Boring Drill (open access)

Rotary Boring Drill

Patent for a rotary boring drill to be used in mining and drilling.
Date: March 4, 1919
Creator: Carmichael, R. E.
System: The Portal to Texas History
Truss. (open access)

Truss.

Patent for a new truss designed to hold ruptures without discomfort, suitable for single and double ruptures. The truss features a novel spring plate, soft rubber pads, and adjustable waterproof bands.
Date: April 19, 1921
Creator: Downie, James H.
System: The Portal to Texas History
Screw Jack (open access)

Screw Jack

Patent for improvements in screw jacks.
Date: March 25, 1919
Creator: Ewing, H. L.
System: The Portal to Texas History
Structural Unit. (open access)

Structural Unit.

Patent for a structural unit for use in construction. It repurposes crushed metal containers to create a core covered by an outer shell made of cement or similar material.
Date: June 21, 1921
Creator: Lambert, John Raymond
System: The Portal to Texas History
Saw Filer and Gummer (open access)

Saw Filer and Gummer

Patent for adding an attachment to aid in "sharpening and gumming the teeth of circular saws particularly such saws as are used in cotton gins" (lines 13-15). The attachment works with a device for which the inventor previously received a patent. (Patent No. 1,180,270)
Date: February 3, 1920
Creator: McMicken, Thomas W.
System: The Portal to Texas History
Screen-Hanger. (open access)

Screen-Hanger.

Patent for more accessible window screen hangers. The inventors claimed that these improved screen hangers eliminated the challenge of hanging window screens on the exterior of tall buildings. These screen hangers allowed customers to hang, adjust, and clean screens from the inside of buildings.
Date: December 9, 1919
Creator: Agee, Howard L. & Agee, Sidney A.
System: The Portal to Texas History
Shovel-Fastening for Cultivators (open access)

Shovel-Fastening for Cultivators

Patent for new and useful improvements in shovel-fastenings for cultivators. Improvements include incorporating a spring latch in the cultivator foot so that no time is lost and no tools would be needed in replacing cultivator shovels.
Date: December 18, 1917
Creator: Kirkpatrick, James M. & Tirey, Grover C.
System: The Portal to Texas History
Record for Live-Stock and Other Shipments. (open access)

Record for Live-Stock and Other Shipments.

Patent for a record for live stock and other shipments to create a centralized publication of the conditions of live stock shipments.
Date: August 27, 1918
Creator: Lloyd, George Henry
System: The Portal to Texas History
Sanitary Nest. (open access)

Sanitary Nest.

Patent for a sanitary nest that is made of metal unlike others made of wood. The nest allows for the animals to nest in an improved environment which helps prevent invasions from pests, climate, or any other unhealthy infestation.
Date: February 26, 1918
Creator: Brooks, John F.
System: The Portal to Texas History
Shoemaker's Gimlet. (open access)

Shoemaker's Gimlet.

Patent for a shoemaker's gimlet that bores holes in wooden heels for women's shoes, including illustrations.
Date: April 23, 1918
Creator: Paternostro, Luca
System: The Portal to Texas History
Railway-Switch-Operating Mechanism (open access)

Railway-Switch-Operating Mechanism

Patent for a railway operation switch which allows for the engineer of the train to operate the switch without the drawback of slowing the locomotive in question.
Date: 1920
Creator: Tally, Carl E.
System: The Portal to Texas History
Record-Filing Cabinet (open access)

Record-Filing Cabinet

Patent for a record filing cabinet designed to show every record within as well as records of different sizes.
Date: May 13, 1919
Creator: McCart, Robert, Jr.
System: The Portal to Texas History
Screen Pickup-Roller. (open access)

Screen Pickup-Roller.

Patent for improvements for condensing things such as lint and hair and removing them from "the screen cylinder of the apparatus by a screen pickup roller." (lines 13-15)
Date: July 13, 1920
Creator: Martin, George W.
System: The Portal to Texas History
Shutter Regulator for Moving-Picture Machines (open access)

Shutter Regulator for Moving-Picture Machines

Patent for new and useful improvements in shutter regulators for moving picture machines. This invention relates to the cinematographic apparatus and more particularly to the shutter mechanism of moving picture machines which may be adjusted with ease and convenience and made secure in the located position
Date: October 31, 1922
Creator: Journeay, Fred Y.
System: The Portal to Texas History
Shotgun (open access)

Shotgun

Patent for a trigger operated shotgun that uses an electrical circuit to ignite combustible material of the shell and thereby propelling the shot within.
Date: May 21, 1918
Creator: Fleming, George
System: The Portal to Texas History